| Childwall to Olympia Heights (Florida) | 4,303.42 mi (6,925.68 km) |
| Childwall to Omaha (Nebraska) | 4,124.39 mi (6,637.56 km) |
| Childwall to On Top of the World Designated Place (Florida) | 4,208.07 mi (6,772.23 km) |
| Childwall to Onalaska (Wisconsin) | 3,821.86 mi (6,150.69 km) |
| Childwall to Oneida (New York) | 3,273.25 mi (5,267.78 km) |
| Childwall to Oneonta (New York) | 3,277.19 mi (5,274.13 km) |
| Childwall to Ontario (California) | 5,247.99 mi (8,445.83 km) |
| Childwall to Ontario (Oregon) | 4,663.00 mi (7,504.37 km) |
| Childwall to Opa-locka (Florida) | 4,290.85 mi (6,905.46 km) |
| Childwall to Opelika (Alabama) | 4,151.13 mi (6,680.60 km) |
| Childwall to Opelousas (Louisiana) | 4,524.69 mi (7,281.79 km) |
| Childwall to Orange (California) | 5,268.39 mi (8,478.65 km) |
| Childwall to Orange (Texas) | 4,611.09 mi (7,420.83 km) |
| Childwall to Orange City (Florida) | 4,176.34 mi (6,721.17 km) |
| Childwall to Orangeburg (South Carolina) | 3,929.52 mi (6,323.96 km) |
